<?php
/**
* 
*/
class Demo
{	
	public static $class;
	public $name;
	
	public function __construct($name)
	{
		$this->name=$name;
	}
	public function getName(){
		echo $this->name.self::$class;
	}

}

Demo::$class='1.5';
$obj = new Demo('lisi');
echo $obj->getName();


?>